CN109239977A - A kind of backlight and display panel - Google Patents
A kind of backlight and display panel Download PDFInfo
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- CN109239977A CN109239977A CN201811338250.0A CN201811338250A CN109239977A CN 109239977 A CN109239977 A CN 109239977A CN 201811338250 A CN201811338250 A CN 201811338250A CN 109239977 A CN109239977 A CN 109239977A
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- film
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
This application provides a kind of backlight and display panel, the backlight includes: light guide plate and multilayer optical film, wherein the multilayer optical film is successively set on the light guide plate, and the optical thin film includes: basal layer, first coating and second coating；The basal layer is glass ribbon, and the first coating is arranged on the first surface of the basal layer, and the second coating is arranged on the second surface of the basal layer.Backlight disclosed in the embodiment of the present application, basal layer using glass ribbon as optical diaphragm, when being reduced with temperature, the size of the basal layer of the optical diaphragm is almost constant, so that the size of the optical thin film is almost constant, when solving that optical diaphragm is from high temperature to low temperature in the prior art, since optical diaphragm is shunk, the problem of periphery bright line easily occurs.
Description
Technical field
The present invention relates to display device technology fields, more specifically, being related to a kind of backlight and display panel.
Background technique
With the continuous development of science and technology, more and more electronic equipments having a display function are widely used in people
Daily life and work in, for daily life and work bring huge convenience, become and work as moderns
Indispensable important tool.
Electronic equipment realizes that the main component of display function is display panel, there is use in the backlight of the display panel
Multiple optical diaphragms are made, and in the prior art, optical diaphragm is mainly made by polyethylene terephthalate (hereinafter referred to as PET)
At in the production process, the optical diaphragm of target thickness and size can be obtained in the PET after being heated by stretching, is drawing
After stretching completion, the optical diaphragm cooling is influenced by thermal expansion and contraction principle, causes the optical diaphragm to shrink, optical diaphragm
After contraction, the problem of will lead to the failure of backlight edge shading rubber belt, periphery bright line occur.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of backlight and display panel, and to solve in existing electronic equipment, back
After optical diaphragm is shunk in light source, the problem of will lead to the failure of backlight edge shading rubber belt, periphery bright line occur.
To achieve the above object, the embodiment of the present invention provides the following technical solutions:
A kind of backlight, comprising:
Light guide plate；
The multilayer optical film being successively set on the light guide plate；
The optical thin film includes: basal layer, first coating and second coating；
The basal layer is glass ribbon, and the first coating is arranged on the first surface of the basal layer, described the
Two coatings are arranged on the second surface of the basal layer.
A kind of display panel, using there is backlight described in the application any one embodiment.
Based on the above-mentioned technical proposal, backlight provided in an embodiment of the present invention includes light guide plate and multilayer optical film,
In, the multilayer optical film is successively set on the light guide plate, the optical thin film include: basal layer, first coating and
Second coating；The basal layer is glass ribbon, and the first coating is arranged on the first surface of the basal layer, described the
Two coatings are arranged on the second surface of the basal layer.Backlight disclosed in the embodiment of the present application, using glass ribbon conduct
The basal layer of optical diaphragm, when reducing with temperature, the size of the basal layer of the optical diaphragm is almost constant, so that institute
The size for stating optical thin film is almost constant, when solving that optical diaphragm is from high temperature to low temperature in the prior art, due to optical diaphragm
The problem of shrinking, periphery bright line easily occur.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 be in the prior art optical thin film shrink before backlight structural schematic diagram；
Fig. 2 be the prior art described in multilayer optical film after shrinking, the structural schematic diagram of the backlight；
Fig. 3 is a kind of structural schematic diagram of backlight disclosed in the embodiment of the present application；
Fig. 4 is a kind of structural schematic diagram for backlight that another embodiment of the application provides；
Fig. 5 is a kind of structural schematic diagram of diffusion barrier disclosed in the embodiment of the present application；
Fig. 6 is the structural schematic diagram of the bright enhancement film disclosed in the embodiment of the present application；
Fig. 7 is a kind of structural schematic diagram of the prism microstructure of bright enhancement film disclosed in the embodiment of the present application；
Fig. 8 is a kind of structural schematic diagram of backlight disclosed in another embodiment of the application.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Backlight (Back Light) is a kind of light source positioned at the behind liquid crystal display (LCD), its illumination effect will
Directly influence LCD MODULE (LCM) visual effect.Liquid crystal display itself does not shine, it shows figure or it is right
The result of light modulation.
Fig. 1 be in the prior art optical thin film 20 shrink before backlight structural schematic diagram, referring to Fig. 1, light guide plate
10；The multilayer optical film 20 being successively set on the light guide plate 10；Glue frame 30 and shading rubber belt 40；The glue frame 30 is set
It is placed in the side edge of the light guide plate 10, and the height of the upper surface of the glue frame 30 is higher than the multilayer optical film 20, institute
Glue frame 30 is stated for providing support for shading rubber belt 40, the shading rubber belt 40 is fixed in the glue frame 30, and a part is hanged
Sky is in the top of the multilayer optical film 20, to block the border area of the multilayer optical film 20, the shading rubber belt
40 main fixed, interceptions (covering lamp position light in the marginal ray and light guide plate 10 of light guide plate 10), are also anti-dazzling screen, black and white
Film, black and white glue etc..Referring to Fig. 1, before the multilayer optical film 20 is not shunk, the multilayer optical film 20 covers completely
The surface of the light guide plate 10 is covered, at this point, the light that 10 edge of light guide plate issues is in the multilayer optical film 20 and shading glue
It under the action of band 40, is filtered out layer by layer, therefore the case where be not in periphery bright line.
Optical thin film 20 in the prior art is mainly made of polyethylene terephthalate (PET), referring to fig. 2, Fig. 2
After shrinking for multilayer optical film 20 described in the prior art, the structural schematic diagram of the backlight, due to described poly- to benzene
Naphthalate has the characteristic expanded with heat and contract with cold, therefore, after the optical thin film 20 is by High-temperature cooling, it may occur that receive
Contracting phenomenon, so that the area of the multilayer optical film 20 reduces, so that an edge portions of the light guide plate 10 can not be more
Layer optical thin film 20 covers, at this point, the light that issues of the region that light guide plate 10 is not covered by the multilayer optical film 20 directly by
The light-emitting surface of light guide plate 10 issues, and the light of sending can not be handled by the multilayer optical film 20, therefore, can make the part area
The light intensity of the light of domain output will be much higher than the light intensity of other regions output, therefore the problem of will appear periphery bright line.
Applicant it has been investigated that, the problem of periphery bright line in the prior art is since the multilayer optical film 20 is received
Contracting and cause, can solve the problems, such as this by way of reducing the shrinking percentage of the optical thin film 20.Therefore, the application is logical
The shrinkage character for changing the multilayer optical film 20 is crossed, to solve the problems, such as that periphery bright line occurs in backlight in the prior art.
Referring to Fig. 3, Fig. 3 is a kind of structural schematic diagram of backlight disclosed in the embodiment of the present application.Referring to Fig. 3, in Fig. 3
In, the backlight, including but not limited to: light guide plate 10 and multilayer optical film 20.
Disclosed in the embodiment of the present application in technical solution, the light guide plate 10 is acrylic/PC plate using optical grade
Material is carved in the acryl plates bottom surface of optical grade with laser then with having high reflectivity and the not hitech materials of extinction
It carves, V-type cross grid engraving, UV screen printing technology stamp light guiding points.It is drawn using optical grade acryl plates from lamp and is issued
The light come is in the stop on optical grade acryl plates surface, and when light is mapped to each light guiding points, reflected light can be toward all angles
Then diffusion destroys conditioned reflex and is projected by 10 front of light guide plate.By various densitys, light guiding points not of uniform size, can make to lead
10 uniformly light-emitting of tabula rasa.
Referring to Fig. 3, identical or different optically thin of multilayered structure is disposed on the light-emitting surface of the light guide plate 10
The optical thin film 20 there are many type can be set in the multilayer optical film 20 for film 20, for example, may include reflectance coating,
One of anti-reflection film, filter coating, protective film, polarizing coating, spectro-film and position phase film are a variety of.Wherein, the reflectance coating to
Increase specular reflectivity, is commonly used to manufacture reflective, refractive power and resonant cavity device.Anti-reflection film can be deposited on optical element surface,
To reduce surface reflection, increase optical system transmission, also known as antireflective coating.Filter coating is used to carry out spectrum or other photosensitiveness point
It cuts.Protective film is deposited on metal or other soft easy erosion materials or film surface, to increase its intensity or stability, improves
Optical property.When the light-emitting surface of the light guide plate 10 emits beam, these light can sequentially pass through the multilayer optical film
20；Light when by the multilayer optical film 20, by the multilayer optical film 20 reflection, penetrate and polarize etc. thoroughly by (folding)
Reason, to reach the light effects for the target type that user wants.
Disclosed in the embodiment of the present application in technical solution, every layer of optical thin film 20 can be by basal layer 21,
One coating 22 and second coating 23 form, wherein the first coating 22 is arranged on the first surface of the basal layer 21, institute
It states second coating 23 to be arranged on the second surface of the basal layer 21, the first surface and second surface are to be located at the base
The optical thin film 20 is successively passed through when light passes through the optical thin film 20 in 21 two sides of bottom and two opposite surfaces
First coating 22, basal layer 21 and second coating 23, or successively by the second coating 23 of the optical thin film 20, base
Bottom 21 and first coating 22.In the prior art, the cooling of optical thin film 20 after-contraction is all due to the basal layer 21
Caused, therefore, the optical thin film 20 is shunk when temperature reduces in order to prevent, technical solution disclosed in the embodiment of the present application
In, this is solved the problems, such as by changing the material of the basal layer 21, specifically, technical solution disclosed in the embodiment of the present application
In, the basal layer 21 is specially glass ribbon, and the glass ribbon is a kind of glass film, generally by glass melt from narrow
It draws and obtains by certain speed when seam outflow.Glass plate can also be reheated to drawing or reheat glass tube and blow thin, company
Continuous cut open is drawn.Manufactured glass film is able to maintain the original insulation of glass and the characteristics such as heat-resisting, and has pliability.By institute
State glass ribbon support basal layer 21 shrinking percentage far below optical thin film 20 in the prior art basal layer 21 contraction
Rate, shrinking percentage is even close to zero, that is to say, that when the temperature of the optical thin film 20 is lower by height, the basal layer
21 size is almost constant, to solve optics in the prior art but also the size of the optical thin film 20 is almost constant
Diaphragm by high temperature to low temperature when, after optical diaphragm is shunk, the problem of periphery bright line easily occurs.
In order to enable the glass ribbon can replace the basal layer 21 in optical thin film 20 in the prior art, in the application
It, can also be by using PET base before the glass ribbon is used as the basal layer 21 in technical solution disclosed in embodiment
The process of surface treatment of material handles the surface of the glass ribbon, wherein the process of surface treatment of the PET base material refers to
Be the basal layer 21 to the PET material in optical thin film 20 in the prior art the technique that is handled of surface, substantially may be used
To include: surface treatment, accurate coating, curing of coatings and on-line checking etc..
Different sizes are different with the setting form of the multilayer optical film 20 in the backlight of demand, for example, for medium and small
For the backlight of size, the multilayer optical film 20 of setting includes upper bright enhancement film 20a, lower bright enhancement film 20b and diffusion barrier
One of 20c or combination, Fig. 4 are a kind of structural schematic diagram for backlight that another embodiment of the application provides.Referring to fig. 4,
When the multilayer optical film 20 includes simultaneously upper bright enhancement film 20a, lower bright enhancement film 20b and diffusion barrier 20c, the upper bright enhancement film
The structure of 20a and lower bright enhancement film 20b can be identical, and the diffusion barrier 20c is arranged in the upper bright enhancement film 20a, lower bright enhancement film 20b
Between.Wherein, the bright enhancement film is also referred to as BEF, is to use acrylic resin, essence on extraordinary 21 surface of basal layer of the transparency
The optical thin film 20 of one layer of uniform prism pattern of close molding.It is assembled at the light-emitting surface of backlight source light conducting plate 10, by light
The light that source issues is assembled to display equipment user direction, and the brightness of 10 light-emitting surface of light guide plate can be improved.About the diffusion barrier
20c when light penetrates the diffusion barrier 20c using the glass ribbon as basal layer 21, can be worn from the different medium of refractive index
It crosses, so that light there is a phenomenon where many refractions, reflection and scattering, can correct light into uniform area light source to reach optics diffusion
Effect.
In addition, the application is also in order to enable the diffusion barrier 20c can preferably be diffused the light in backlight
The structure of the diffusion barrier 20c is improved, referring to Fig. 5, Fig. 5 is a kind of diffusion barrier 20c disclosed in the embodiment of the present application
Structural schematic diagram, disclosed in Fig. 5 embodiment in diffusion barrier 20c, the first coating 22 and second coating of the diffusion barrier 20c
Multiple diffusion particle 20c1 are provided in 23, wherein the first coating 22 and second coating 23 can be with the basal layers
21 are an integral structure, and the material of the first coating 22 and second coating 23 can be identical or different with the basal layer 21,
When three's material is identical, referring to Fig. 6, Fig. 6 is a kind of structural schematic diagram for diffusion layer that another embodiment of the application provides, institute
It states first coating 22 and second coating 23 also refers to two of the basal layer 21 surfaces for being provided with diffusion particle, when
So, the first coating 22 and second coating 23 are coated in two surfaces of the basal layer 21, have diffusion
The resin layer of particle or other transparent materials form the coating with diffusion particle.The diffusion particle can be uniformly or random
It is distributed in the first coating 22 and second coating 23, also, the diffusion in the first coating 22 and/or second coating 23
The size of particle can be the same or different, for example, the multiple diffusion particle can in technical solution disclosed in the present embodiment
To refer to including at least multiple diffusion particles of two kinds of sizes or more.The diffusion particle can use organic filler, such as
PMMA particle, PC particle, PET particle, PE particle, PU particle etc., can also be used inorganic particulate, for example, ZnS particle, ZnO particle,
TiO2 particle, CaCO3 particle, CaO particle, Al2O3 particle etc., typically, the diffusion particle be usually partial size for
0.5-25 μm of sphere or ellipsoid shaped particle.Due to the material and the first coating 22 and second coating 23 of the diffusion particle
Difference, light is being by the first coating 22 and second coating 23, constantly (can constitute the in the different medium of 2 refractive index
The medium of one coating 22 and the medium for constituting the diffusion particle) in pass through, therefore light will occur many refractions, reflection and dissipate
The phenomenon that penetrating, so just causing the diffusion barrier 20c has the effect of optics diffusion.
About the upper bright enhancement film 20a and lower bright enhancement film 20b, referring to Fig. 6, Fig. 6 is described disclosed in the embodiment of the present application
The structural schematic diagram of bright enhancement film, the first coating 22 and 23 structure of second coating of the upper bright enhancement film 20a and lower bright enhancement film 20b are not
Together, wherein the first coating 22 of the upper bright enhancement film 20a and lower bright enhancement film 20b are made of multiple prism microstructures, described more
The vertex of a prism microstructure can be isosceles triangle or ladder far from the basal layer 21, the cross section of the prism microstructure
Shape, the isosceles triangle bottom edge or trapezoidal bottom are arranged on the basal layer 21, and the prism microstructure vertex is separate
The second coating 23 of the basal layer 21, the upper bright enhancement film 20a and the lower bright enhancement film 20b are by multiple diffusion particle structures
At.The light of the output of the backlight can be selected by the prism microstructure, allow and meet convergence angular
Light passes through, and is reflected back toward backlight without qualified light, returns the prism after scattering in the backlight again
Micro-structure, until eligible outgoing.The second coating 23 of the upper bright enhancement film 20a and lower bright enhancement film 20b can be with institutes
First coating 22 and/or 23 structure of second coating for stating diffusion barrier 20c are identical or different, the upper bright enhancement film 20a and it is described under
The setting form of diffusion particle in the second coating 23 of bright enhancement film 20b can use for reference setting for the diffusion particle in the bright enhancement film
Set form.
Further, the micro- knot of multiple prisms in the first coating 22 of the upper bright enhancement film 20a and the lower bright enhancement film 20b
Structure can be arranged in the first coating 22 in continuously distributed form, specifically, Fig. 7 is in the first coating 22
A kind of structural schematic diagram of the prism microstructure of bright enhancement film disclosed in the embodiment of the present application, referring to Fig. 7, implementation disclosed in the present application
In example, multiple prism microstructures in the first coating 22 are sequentially distributed on X in a first direction, the length of the prism microstructure
Spend direction it is vertical with the first direction, and the prism for structure in the second direction of the bright enhancement film along described second
The elongated setting of coating 23.Disclosed in the embodiment of the present application in technical solution, the second coating 23 also refers to directly exist
Multiple prism microstructures made of being grown on the basal layer 21, at this point, the material of the prism microstructure can be with the base
The material of bottom 21 is identical, and the two can be integrally machined, it is of course also possible to be to be arranged one in the present prism microstructure
Layer coating, then one layer of prism microstructure is grown on the coating layer, at this point, the second coating 23 then refers to the coating and thereon
Prism microstructure.Preferably, the cross section of prism microstructure disclosed in the embodiment of the present application is isosceles triangle, and constitutes rib
Two side lengths of mirror microstructure are identical, disclosed in the embodiment of the present application in technical solution, two sides of prism microstructure
The angle in face can be the same or different, and further, the height of each prism microstructure can be the same or different,
In technical solution disclosed in the embodiment of the present application, the rib in the first coating 22 of the bright enhancement film can be set according to user demand
The shape and size of mirror, so that treated that light can achieve the effect that needed for user by the brightening piece.
In order to meet the ultrathin demand of existing display panel, the thickness of the backlight also should further reduce, such as
Fruit will realize the reduction of the backlight thickness, can be realized by the size of each film layer in reduction backlight, for example,
Technical solution disclosed in the embodiment of the present application summarizes, and the thickness of the basal layer 21 is not less than 5um, and is not more than 20um.
It further, can also include glue frame 30 and shading rubber belt in backlight disclosed in the above embodiments of the present application
40, wherein the glue frame 30 is set to the side of the light guide plate 10, and the height of the upper surface of the glue frame 30 is higher than described
The height of the upper surface of outermost one layer of optical thin film 20 in multilayer optical film 20.Outermost one layer of the optical thin film 20
Upper surface refers to leading away from described for the optical thin film 20 that light guide plate 10 described in distance is farthest in the multilayer optical film 20
The surface of tabula rasa 10.The glue frame 30 is used to provide support for shading rubber belt 40, and the long side of the side of the shading rubber belt 40 is solid
It is scheduled in the glue frame 30, the side of the other side extends to the top of the multilayer optical film 20, and at least covering part optics
Film 20, the shading glue 40 is with including at least the first part being fixed in the glue frame 30 and positioned at the multilayer optical
The second part of 20 top of film, the first part of the shading rubber belt 40 are connected with second part, and the two is an integral structure.
Also, it is further, it is provided with prepsetting gap between the upper surface and the shading rubber belt 40 of the outermost layer optical thin film 20,
The size in the gap can be according to user demand sets itself, for example, its value range can be at gap [0.01mm, 0.03mm]
Between.
Further in order to guarantee the stability of the back light source structure, display panel backlight in use is prevented
In light guide plate 10 be displaced, disclosed in this embodiment of the present application in technical solution, also the structure of the glue frame 30 is carried out
It is further improved, referring to Fig. 8, Fig. 8 is a kind of structural schematic diagram of backlight disclosed in another embodiment of the application, in the application
In technical solution disclosed in embodiment, the glue frame 30 can be L-type structure, wherein the horizontal edge of the L-type structure is fitted in institute
The upper surface of light guide plate 10 is stated, the upper surface of the light guide plate 10 refers to the light guide plate 10 towards the multiple optical thin film
20 one side.The horizontal edge that the shading rubber belt 40 is pasted onto the L-type structure deviates from the one side of the light guide plate 10.
Based on a kind of backlight of the above-mentioned offer of the present invention, the present invention also provides a kind of display panel and electronic equipment,
The display panel may include the backlight that the above-mentioned any one embodiment of the application provides.
The electronic equipment includes above-mentioned display panel.
Specifically, the electronic equipment includes but is not limited to plate or mobile phone etc..
The electronic equipment solves electronics in the prior art by using the display panel of the backlight with above structure
Present in equipment the problem of the bright line of periphery, its display effect is improved.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that article or equipment including a series of elements not only include those elements, but also
It including other elements that are not explicitly listed, or further include for this article or the intrinsic element of equipment.Do not having
In the case where more limitations, the element that is limited by sentence "including a ...", it is not excluded that in the article including above-mentioned element
Or there is also other identical elements in equipment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (11)
1. a kind of backlight characterized by comprising
Light guide plate；
The multilayer optical film being successively set on the light guide plate；
The optical thin film includes: basal layer, first coating and second coating；
The basal layer is glass ribbon, and the first coating is arranged on the first surface of the basal layer, and described second applies
Layer is arranged on the second surface of the basal layer.
2. backlight according to claim 1, which is characterized in that the optical thin film includes:
One of upper bright enhancement film, lower bright enhancement film and diffusion barrier for being arranged between the upper bright enhancement film, lower bright enhancement film or combination.
3. backlight according to claim 2, which is characterized in that
By there is multiple diffusion particles to constitute in the first coating and second coating of the diffusion barrier；
The first coating of the upper bright enhancement film and lower bright enhancement film is made of multiple prism microstructures, the prism microstructure vertex
Far from the basal layer, the second coating of the upper bright enhancement film and the lower bright enhancement film is made of multiple diffusion particles.
4. backlight according to claim 3, which is characterized in that be provided with multiple prism microstructures in the first coating
Size it is identical.
5. backlight according to claim 3, which is characterized in that multiple prism microstructures in the first coating are in company
Continuous distribution mode.
6. backlight according to claim 3, which is characterized in that the multiple diffusion particle includes at least two kinds of different rulers
Very little spherical diffusion particle.
7. backlight according to claim 1, which is characterized in that the thickness of the basal layer is not less than 5um, and is not more than
20um。
8. backlight according to claim 1, which is characterized in that further include:
Glue frame and shading rubber belt；
The glue frame includes that connected first part and second part, the first part of the glue frame are set to the side of the light guide plate
At side, the second part of the glue frame is set to the upper surface of the light guide plate；
The shading rubber belt includes at least and is fixed on the first part in the glue frame and above the optical thin film
The first part of second part, the shading rubber belt is connected with second part.
9. backlight according to claim 8, which is characterized in that
There is gap between the second part of the shading rubber belt and the optical thin film.
10. backlight according to claim 9, which is characterized in that the gap is not less than 0.01mm, is not more than
0.03mm。
11. a kind of display panel, which is characterized in that application has backlight described in the claim 1-10 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811338250.0A CN109239977A (en) | 2018-11-12 | 2018-11-12 | A kind of backlight and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811338250.0A CN109239977A (en) | 2018-11-12 | 2018-11-12 | A kind of backlight and display panel |
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| Publication Number | Publication Date |
|---|---|
| CN109239977A true CN109239977A (en) | 2019-01-18 |
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|---|---|---|---|
| CN201811338250.0A Pending CN109239977A (en) | 2018-11-12 | 2018-11-12 | A kind of backlight and display panel |
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